SE8305382D0 - A TESTABLE OPTICALLY ISOLATED CONTROL CIRCUIT - Google Patents

A TESTABLE OPTICALLY ISOLATED CONTROL CIRCUIT

Info

Publication number
SE8305382D0
SE8305382D0 SE8305382A SE8305382A SE8305382D0 SE 8305382 D0 SE8305382 D0 SE 8305382D0 SE 8305382 A SE8305382 A SE 8305382A SE 8305382 A SE8305382 A SE 8305382A SE 8305382 D0 SE8305382 D0 SE 8305382D0
Authority
SE
Sweden
Prior art keywords
unit
receiver
testable
control circuit
transmitter
Prior art date
Application number
SE8305382A
Other languages
Swedish (sv)
Other versions
SE8305382L (en
SE452536B (en
Inventor
M R Benson
W D Hill
Brien G G O
D W Hollenbeck
Original Assignee
Gen Electric
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gen Electric filed Critical Gen Electric
Publication of SE8305382D0 publication Critical patent/SE8305382D0/en
Publication of SE8305382L publication Critical patent/SE8305382L/en
Publication of SE452536B publication Critical patent/SE452536B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
    • G01R31/2836—Fault-finding or characterising
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0814—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/08142—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in field-effect transistor switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
    • H03K17/6874—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor in a symmetrical configuration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector

Abstract

A testable physically isolated control circuit includes a first unit 10, a second unit 40, and an optical coupler 30 to couple units 10 and 40 together. The functional portion 10a of the first unit includes an input terminal 11 and an oscillator 12 for controlling a first transmitter 17. Signals from the first transmitter are received by a receiver 44 in unit 40 to control the relay 48. Each unit 10 and 40 also includes a testing portion 10b and 40b for monitoring the condition of the functional portions. The testing portion 40b detects the state of the receiver 44 and the relay 48 and transmits this information via transmitter 65 to a receiver 22 in first unit 10. This receiver 22 controls input terminals 29 and 15 to provide control information concerning the proper functioning of the circuit.
SE8305382A 1982-11-15 1983-09-30 ELECTRONIC RELE switches SE452536B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/442,395 US4495655A (en) 1982-07-27 1982-11-15 Testable optically isolated control circuit

Publications (3)

Publication Number Publication Date
SE8305382D0 true SE8305382D0 (en) 1983-09-30
SE8305382L SE8305382L (en) 1984-05-16
SE452536B SE452536B (en) 1987-11-30

Family

ID=23756644

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8305382A SE452536B (en) 1982-11-15 1983-09-30 ELECTRONIC RELE switches

Country Status (7)

Country Link
US (1) US4495655A (en)
JP (1) JPS59112398A (en)
KR (1) KR840006858A (en)
DE (1) DE3340611C2 (en)
ES (1) ES8608189A1 (en)
IT (1) IT1167584B (en)
SE (1) SE452536B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4717913A (en) * 1985-08-29 1988-01-05 Johnson Service Company Data telemetry system using diffused infrared light
US5138475A (en) * 1990-03-26 1992-08-11 At&T Bell Laboratories Dc-coupled optical data link utilizing differential transmission
US6507283B1 (en) 1998-05-20 2003-01-14 The Foxboro Company Self-validating output module
US20060196095A1 (en) * 2005-03-04 2006-09-07 Alice Flannigan Framing system and method thereof
CN103513193A (en) * 2012-06-27 2014-01-15 海洋王（东莞）照明科技有限公司 Switch impact test circuit
CN107272813B (en) * 2017-05-15 2018-11-09 南京昶达新材料技术有限公司 A kind of switching signal input circuit
US10685800B2 (en) 2018-06-18 2020-06-16 Edward W. Anderson Testable sealed relay and self-diagnosing relay
US11211421B2 (en) 2019-01-23 2021-12-28 Omnivision Technologies, Inc. Sensor comprising gate modulation with inductor to form a resonant circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5243089A (en) * 1975-10-03 1977-04-04 Hitachi Ltd Trouble diagnosis process in the remote supervisory control system
JPS5652947A (en) * 1979-10-05 1981-05-12 Hitachi Ltd Signal transmitter and receiver
US4408131A (en) * 1981-09-21 1983-10-04 Westinghouse Electric Corp. Optically isolated solid state relay
US4438356A (en) * 1982-03-24 1984-03-20 International Rectifier Corporation Solid state relay circuit employing MOSFET power switching devices

Also Published As

Publication number Publication date
IT1167584B (en) 1987-05-13
KR840006858A (en) 1984-12-03
DE3340611C2 (en) 1984-12-13
US4495655A (en) 1985-01-22
DE3340611A1 (en) 1984-05-24
SE8305382L (en) 1984-05-16
ES527252A0 (en) 1986-06-01
ES8608189A1 (en) 1986-06-01
SE452536B (en) 1987-11-30
IT8323709A0 (en) 1983-11-15
JPS59112398A (en) 1984-06-28

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